Not to be a bitch, but i really hate these kinds of things. When i was really young i saw the first picture you displayed and straight away thought, that's bullshit, those steps are going down. I've never really had any respect for them because they all rely on the same assumed depth of field. And because there is no actual depth of filed in the main picture, all the extra details, like the people, in the pictures you provided, just look out of place to me. But that's just my cynical opinion.

Goatboy wrote:Oh, that's simple. All you need to do is dedicate many years of your life to studying security.

... Thanks for the opinion...Actually they sometimes give me headaches but I still like them. A think these things happen because our brain use the image of both eyes to recognize depth, that's how 3D movies works. In the image we just don't have those two different angle images so we can't recognize what's going on.

Bazukero wrote:A think these things happen because our brain use the image of both eyes to recognize depth, that's how 3D movies works.

I suppose you could call it triangulation. You can determine how far an object is away if you know how far apart the two points of reference(your eyes) are and what angle they are at to focus on the object.

Bazukero wrote: In the image we just don't have those two different angle images so we can't recognize what's going on.

They would use 3 point perspective drawing to try and recreate what the eye would see if the drawing did have depth, then if they can get away with it, change the points of perspective somewhere in the drawing, just to fuck with us.

Goatboy wrote:Oh, that's simple. All you need to do is dedicate many years of your life to studying security.